I'm a nervous Type A, and we fly exclusively JetBlue, which I love that they post airfare at 11 months out, too, and book ASAP. JetBlue is also great about canceling the airfare and then rebooking at the cheaper price and the difference goes in your travel bank for the next trip.
I like to have my ducks in a row, everything extraneous (tickets, airfare, GCs) all prepaid and ready to go so I can just get excited about planning ADRs or new things to try, etc.
I tried Hopper and Google Flights, but unless I'm doing something wrong, they only show the cheapest airfare with no bags and not picking your seats. By the time you add in carryon luggage and seat selection, the information seemed irrelevant.